Furnace for treating ores.



H. C. BELLINGER.

FURNACE FOR TREATING ORES. APPLICATION FILED JUNE 16. 1908.

942,052. Patented Dec. 7, 1909.

3 SHEETSSHEET 1 Qlmcoaco: H

SMW N I I W @31 fbfli'l'ozuev 3 an mal lion H. G. BELLINGER.

I FURNACE FOR TREATING ORES.

APPLICATION FILED JUNE 16. 1908,

942,052. I Patented Dec. 7, 1909.

3 SHEETS SHEET 2.

H. c. BELLINGBR. FURNACE FOR TREATING ORES.

APPLICATION FILED JUNE 16, 1908.

Patented Dec. 7, 1909.

3 SHEETS-SHEET 3.

UNITED STATES PATENT orrren v HERMAN c. nnnnrnenn, or LAKE CITY, AssIenon or ONE-HALF 'ro G. i1.-

' ELVIS, or SALT LAKE crrY, UTAH.

' FURNACE- ron. TREATING onns.

' Specification of Letters Patent.

Patented Dec. '1, 1909.

Application filed June 16, 1908. Serial No. 488,694.

To' all whom it may concern:

Be it known that-,1, IIERMAN C. BEL- LINenn, a citizen of theUnited States, residing 'at Salt Lake City, inthe county of Salt Lake, State of Utah, have made a certain new and useful Invention 'inFurna ces for Treating Ores, of which the following is a specification.

The invention relates to furnaces for treating ores.

The object of the invention is to provide a sinteringfurnace for ores and other purposes which .is simple in construction and eflicient in operation;

A further object of theflinvention is to provide a furnace for the treatment .of ore and of a special advantage treating or handling fine ores, in such manner as to sinter or agglomerate such fines or fine ores, preparatory to the smeltiugoperation.

A further object of the invention is to provide a furnace of thecharacter referred to which is continuous in its operation.

Other objects of the inventio will appear more fully hereinafter. v

The invention consists substantially in the construction, combination, location, and arrangement of parts, all as will be more fully hereinafter set' forth, as shown in the accompanying drawings, and finally pointed out in the appended claims.

Referring to the accompanying drawings, and to the various views and reference signs appearing thereon,-Figure 1 is a view in side elevation, partly in vertical central longitudinal section, of a' furnace con structed in accordance with the principles of my invention; Fig. 2 is a View in top plan of the same, parts broken out and parts in horizontal section. Fig. 3 is a View in rear end elevation, parts broken outand parts in vertical transverse section.

The same part is designated by the same reference sign wherever out the several views.

In the art of treating copper sulfid ores, a number of methods are in vogue,the more common being the shaft or blast furnace method, and the Welsh or roasting reverberatory process. The latter is priit occurs throughmarily intended for the smelting of fine' ores, and under certain conditions has a number of drawbacks which are lackin in the shaft or .blast furnace practice. The latter method, however, is handicapped by the difliculties encountered in the treating of fine material without preliminary ag glomeration. The reduction incapacity; the excessive quantities of flue dust made and other difliculties, are all toowell known to require explanatio 7 It is among the special purposes of my present invention to provide all machine which is simple in construction and eflicient in operation, and designed for the preparation offine ores, eoncentrates,"etc., for treatment in the blast furnace by sintering or agglomerating such fine materials, thereby eliminating the difli'culties above mentioned.

In accordance with the principles of my invention the ore to be sintered or agglomerated is automatically, steadily and continously fed over a grizzly to permit the finer particles to drop through the spaces of the grizzly onto a. traveling carrier or grate where such finer particles are ignited to form a combustion bed of material ora' priming bed, such as heated calcines, can be discharged onto the traveling grate in any suitable manner, onto which the larger and' coarser particles of ore from the grizzly are deposited. On top of this bed and to serve the purposes of a blanket, and other uses, lime, coarse ore, or other suitable material, is also continuously fed. ,This

blanket serves to minimize the amount of flue-dust which might be created by reason of a forced draft passing through the'bed of material. The traveling grate or carrier operates through a blast chamber and in the course of travel of the material through such chamber suflicient combustion is" attained to efliciently agglomerate or sinter the material, so that the material dischar ed from the traveli grate or carrier, a ter passing through t e blast chamber, is .in conditlon for use in the smelting furnace.

It is obvious that many specifically different constructions and arrangements may be employed for carryin this general operation into practical effect. While, therefore, I have shown, .and will now describe, one construction of machine suitable for the purpose, I do notdesire to be limited or re stricted to the specific details thereof.

In the drawings, reference sign 5, desig= nates a blast chamber having a blast connection 6, delivering thereto, and a waste gas flue 7, delivering therefrom. Through this chamber from end to end operates an endless belt or chain operating over rollers or drums 9, 10, respectively journaled at opp'osite endsof the blast chamber. The traveling grate or carrier 8, may be operated by any suitable or. convenient arrangement of drive mechanism. I have shown a simple arrangement wherein a drive shaft 11, is driven through a belt pulley 12, from any convenient source, said shaft 11, carrying a worm 13, engaging with and driving a worm wheel 14, on a shaft 15, which, through intermeshing worm 16, and worm wheel 17, drives one of the carrier drums as 10. In order to efficiently support the traveling rate between the drums 9, and 10, with its Ioad ofore, I arrange said traveling grate to be supported upon rollers or other suitable supports 18, suitably journaled in side frames 19, of the blast chamber.

The ore to be treated is delivered in any suitable or convenient manner into a hopper 20, from which such ore is distributed down an inclined chute 21. In order to secure an equalized distribution ef -the ore and a continuous. feed thereof from the hopper 20, I employ a distributer pan or device'22, arran ed to be reciprocated back and. forth wit hopper 20, in any suitable manner as, for instance, through an eccentric rod 23, o erated from any convenient source, not s own. At its'lower end the inclined chute 21, carries a grizzly 24. Beneath the grizzly is arranged a burner 25, designed to ignite the finer particles of ore falling through the spaces of the grizzly, and behind thisburner, and below the chute 21, and grizzly, is located a portion 26, of the blast chamber. The fine particles of ore falling from the grizzly are received upon the traveling carrier or grate 8, and being ignited from the burner 25, forms a combustion bed upon which the larger and coarser particles of ore fall from the grizzly 24. This forms a heated combustion bed of the ore which is carried along by the traveling grate or carrier, and into the blast chamber where such bed is subjected to the action of the blast delivered to such chamber through the blast connection 6.

In order to prevent the blast delivered through the traveling bed of material being treated, fromcarr ing ofl fine particles of ore in the form of dust or fines, a blanket bed is delivered onto the ignited bed of ore. A convenient arrangement for accomplishing this result is shown wherein lime or other suitable materialis continuously deln erei'l upon such bed of ignited ore from a liopper 3Q, in which operates a distributer 31, similar to the distributer 22, and operated by an eccentric (not shown) or otherwise, through a rod 32. The material delivered from the distributer 31, isdirected by an inclinedchute 33, onto the bed of ore carried by the traveling grate at a point somewhat in advance of the delivery end ofthe ore grizzly 24, as clearly shown in the drawing. In practice instead of employing lime for the blanket, coarse ore, or

other suitable material may be employed. The waste gases from the traveling bed of ore under treatment, escapes through the waste as connection 7, and any dust, fines or the ike carried from the bedof oreis collected in the upper part of the blast chamber 5, which, for this purpose, serves as a dust chamber.

If desired, sightholes 35, may be provided through the wall of the blast chamber so that the action of the combustion may be observed. The blast chamber may also be provided with man-holes 36, by which access is gained to the interior parts thereof.

The sintered or a glomerated product indicated at 37, is de ivered from the travcling grate or carrier after having passed through the blast chamber, and is in com dition ready to be received in the mixing bins, or delivered direct to the blast furnace for smeltin In practice the bed of material on the travelin grate or carrier, should lie to a depth of approximately 4 to 6 inches. The combustion of the sulfur contained in the ore will ordinarily furnish suflicient heat to efiect the ag lomeration or sintering of the material. I desired, and in order to afford convenient means for transporting the machine, I may mount the same upon wheels 38, for operation upon track rails 39.

From the foregoingdescription, it will be s'eenthat I provide a simple machine for agglomerating or sintering fine ores, fines, ore-dust and the like in preparation of the same for treatment in a blast furnace. It will also be seen that the operation is continuous and under conditions of uniformity which results in a sintered or agglomerated product in proper condition for use in the blast furnace without incurring danger of waste of values when treated in the blast furnace. The presence of the blanket bed of lime, ore, or the like, on top of the combus' tion bed serves to minimize the percentage of dust required to be collected in the dust chamber.

It will be seen that by the operation ,of a machine embodyin my invention, I am enabled to secure uni ormity of sintered prodnot.

The burner 25, may be an oil or gas burner,

or it may be any other suitable device capable of easily igniting the material to be sin .tered, while'the overlying portion of the bed of ore will be ignited directly fromthe ignited portion" lying underneath the same. The use of a blast of cold air delivered from beneath throu h the bed of material bein treated, as suc bed progressa or is carrie through the blast chamber, insures freedom from corrosion or clogging of the rates resulting from fusion of the material being treated. The use of the blanket-formed by a layer of finely crushed lime, coal,'coke or other suitable material, delivered on top of the bed of material to be sintered, serves as a filter to separate dustfrom the products of combustion. By employing an endless traveling flexible grate, particles of material being sintered are prevented from lodging between the grate bars, thereby insuring at all times free assage ofair from the blast furnace throug the bed of ore being treated.

The sintered product is delivered evenly, uniformly and continuously from the machine. i

It will be observed that themetal parts of the machine are protected from I contact with the fumes of combustion,.wh'ile at the'same time access is rendered easy to all mechanical or moving parts.

Having now set forth the-ebject and 11ature of my invention and a construction embodying the principles thereof, what I claim as new and useful, and of my own invention, and desire to secure by Letters Patentis 1. 'In an apparatus for'preparing ores for blast furnaces, a blast chamber, a traveling carrier operating thereth'rough, means for delivering the ore to be prepared to such carrier and means for protecting the bed of ores to be prepared from the action of the blast in the chamber.

2. In an apparatus for preparing ore for blast furnaces, a blast chamber, a traveling carrier operating therethrough, means for delivering the ore to be prepared upon-said carrier, and means for delivering'a protecting blanket on top of the bed of ore.

3. In an apparatus for preparing ores for smelting furnaces and other purposes, a blast chamber, means for continuously feeding the ores to be prepared through such chamber, and means for protecting the bed of ores to be prepared from the action of the blast in such chamber.

4. In a machine for preparing ores and the like for smelting furnaces or other purposes, a blast chamber, a traveling carrier operating therethrough, an ore hopper delivering to said carrier, and igniting means located below the hopper for igniting a portion of the ore adjacent the ery thereof to said carrier.

5. In an apparatus for preparing ores or point of (lelivthe like forismelting or other purposes, a

blast chamber, a carrier operating therethrough, a hopper delivering to said carrier and a distributer arranged within said hopper.

7. In an apparatus for preparing ores or the like for smelting or other purposes, a blast chamber, a carrier, operating therethrough, means for delivering a bed'of ore to be treated to said carrier, means for igniting the lower portion of said bed, and means for distributin a protecting blanket upon thetop of saidiwd.

8. In an apparatus for preparing ore for smelting or other purposes,a blast chamber, a carrier operating through said chamber, means for continuously delivering the ore to be prepared upon said carrier means for igniting the finer particlesof the ore delivered to such carrier, and means for distributing ablanket of lime up'on'the top of the ore bed. v

9. In an apparatus for preparing ores or the like for smelting or other purposes, a blast'chamber, an endless carrier operating therethrouglnmeans for actuatingsaid carrier, supporting 7 means for saidcarrier, means for continuously delivering a bed of ores to be treated to said carrier, and means for protecting the bed of ores from the action of the blast in the blast chamber. 1

10. In an apparatus for preparing ores 01 the like for smelting or other purposes, a blast chamber having side. frames, transversely extending drums mounted in said frames at the ends thereof,an endless carrier operating over the said drums, means for actuating said carrier, supporting rollers for said carrier, said rollers mounted in said side frames, and means for delivering a bed of the ores to be treated to said carrier.

11. In an apparatus for preparing ores and the like for smelting and other purposes, a blast chamber, an endless carrier or grate operating therethrough, hoppers arranged to deliver to the receiving end of said grate, a grizzly over which one of said hoppers delivers to said grate, a burner arranged below said grizzly and between the same and said grate, and means for continuously moving said grate through said chamber, said chamber having .a blast connection and a waste gas flue, the upper part of said chamber forming a dust chamber.

12. In an apparatus for preparing ores 01;

1 the like for smelting or other purposes, a

blast chamber, a traveling carrier operating therethrough, means for delivering the bed my hand in the presence of the subscribing of ore to be treated upon said carrier, means Witnesses, on this 11th day of June A. D. for igniting such material, means for main- 1908.

taining a blast upwardly through said bed HERMAN O. BELLINGER. 5 of material and means for protecting the Witnesses:

ores from the action of the blast. H. H. GREEN,

In testimonywhereoi I have hereunto set J. FRANK PFLUG. 

